JPH0536246U - Electric water heater - Google Patents

Abstract

(57) [Abstract] [Purpose] Electricity of a structure with a separate heating part, and even if the hot water storage part and heating part are placed under the floor, their functional parts can be easily inspected and repaired. Provide a water heater. [Structure] The hot water storage part and the heating part are arranged such that a part of each side faces the same maintenance space, and all the functional parts of the hot water storage part and the heating part face the maintenance space. Side part F1
And F2. As a result, all the functional parts of both the hot water storage part and the heating part can be inspected and repaired from above the floor, and the intended purpose can be achieved.

Description

[Detailed description of the device]

[0001]

[Field of Industrial Application] The present invention relates to an electric water heater used in a general house or the like.

[0002]

2. Description of the Related Art As an electric water heater, water stored in a hot water storage tank is heated by an electric heater arranged inside the tank, and the entire water in the hot water storage tank is boiled by natural convection caused by this heating. The thing of a structure is common.

[0003]

[Problems to be Solved by the Invention] However, an electric water heater having a general structure has a drawback that the installation space is considerably large, and it becomes difficult to install it in a house with a narrow space due to rising land prices. ing. Therefore, recently, the hot water storage part and the heating part are separated to increase the degree of freedom in the location of installation of the electric water heater to address such problems. In this case, although it is considered to install the hot water storage unit and the heating unit under the floor in the kitchen, etc., the hot water storage unit and the heating unit have many devices that require maintenance and are installed under the floor. Then, it becomes difficult to inspect and repair those devices, and such installation is not realized at present.

An object of the present invention is to provide an electric water heater capable of easily inspecting and repairing all the functional parts of a hot water storage part and a heating part even if they are installed under the floor or the like. .

[0005]

Means for Solving the Problems A configuration for achieving the above object will be described with reference to FIGS. 1 and 2 corresponding to an embodiment. The present invention provides a hot water storage unit 1 and a heating unit 2. The parts F1 and F2 on the side facing the maintenance space S include all of the functional parts of the hot water storage unit 1 and the heating unit 2 while arranging them so that a part of each side faces the same maintenance space S. It is located in.

[0006]

[Function] All the functional components of the hot water storage unit 1 and the heating unit 2 are exposed to the same maintenance space S, so that even if the hot water storage unit 1 and the heating unit 2 are installed under the floor, etc. It becomes possible to inspect and repair the functional parts of, for example, by working from the floor.

[0007]

Embodiment An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of an embodiment of the present invention. 2A and 2B are views showing the structure when the embodiment of the present invention is installed under the floor. FIG. 2A is a plan view and FIG. 2B is a side view thereof. First, the overall configuration of this embodiment will be described. The hot water storage unit 1 includes a hot water storage tank 10 that is open to the atmosphere, and the hot water storage tank 10 is connected to a drain pipe 10b including an overflow pipe 10a and a drain valve 10c.

The heating unit 2 is mainly composed of a heating tank 21, an electric heater 22 and a pump 23 arranged inside the tank 21. The discharge port of the pump 23 communicates with the inside of the heating tank 21 via the three-way valve 29 and the check valve 24, and the suction pipe is connected with the outflow pipe 11 whose end communicates with the inside of the hot water storage tank 10. Has been done.

A return pipe 12 having an end communicating with the inside of the hot water storage tank 10 and having a flow switch 28 in the middle is connected to the upper portion of the heating tank 22. Further, a water supply pipe 13 to which an electric valve 25, a flow sensor 26 and a check valve 27 are sequentially connected is communicated with a bottom position in the heating tank 21. A temperature sensor TH and a high limit sensor HL are arranged in the heating tank 21.

In the above structure, the boiling water is heated by heating the water filled in the heating tank 21 with the electric heater 22 to bring it to the hot water storage tank 10 in a batch system. Alternatively, while the hot water storage tank 10 and the heating tank 21 are filled with water, the pump 23 and the electric heater 22 are driven to circulate and heat the water in the hot water storage tank 10.

In the embodiment of the present invention, as shown in FIG. 2, the hot water storage unit 1 and the heating unit 2 are installed under the floor of a kitchen, for example, and face each other with a maintenance space S in between. , The respective functional parts are arranged at the facing portions F1 and F2. That is, in the hot water storage unit 1, the overflow pipe 10a, the drain pipe 10b, and the drain valve 10c are all arranged at the facing portion F1. Further, in the heating unit 2, all the sensors TH, HL, 26, 28 and valves 25, 29, 27, 24 and the pump 23 are arranged at the facing portion F2, and further, the heating tank The mounting portion of the electric heater 22 on the 21 is also located at the facing portion F2.

On the other hand, an opening 101a is provided above the maintenance space S on the floor 101 where the hot water storage unit 1 and the heating tank 2 are installed. A lid 102 is fitted in the opening 101a. Further, a crime prevention enclosure 103 is arranged on the side of the maintenance space S. In addition, such a floor structure is similar to a general underfloor storage structure used in a kitchen or the like.

According to the embodiment of the present invention described above, by removing the lid 102 provided above the maintenance space S, all the functional components of the hot water storage unit 1 and the heating unit 2 are opened from above the floor 101 to the opening 101a. It is possible to inspect and repair through, and the work can be done easily. Further, since the security enclosure 103 is provided at the side opening of the maintenance space S, it is possible to prevent an intruder from this portion, which is safe. Instead of the structure of the security enclosure 103, a lock mechanism may be provided in the opening 101a so that the lid 102 can be opened and closed only by an operation from the floor.

Further, in the above embodiment, the hot water storage portion 1 and the heating portion 2 are arranged so as to face each other with the maintenance space S in between, but, for example, as shown in the plan view of FIG. The part 101 and the heating part 202 are arranged so as to face two adjacent sides of the maintenance space S, and all functional parts are arranged in the parts F11 and F21 facing the maintenance space S. You can do it. In this case, the crime prevention enclosure 113 may be in the shape of a dogleg.

[0015]

As described above, according to the present invention, the hot water storage unit and the heating unit are arranged such that a part of each side faces the same maintenance space, and the hot water storage unit and the heating unit are heated. Since all of the functional parts of the room are located on the side facing the maintenance space, even if the hot water storage part and the heating part are located under the floor, all of the functional parts of both parts must be installed on the floor. It is possible to easily inspect and repair by working from above. This makes it possible to install the entire electric water heater under the floor, such as in the kitchen, and eliminates the installation space for the electric water heater in the indoor space.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

2A and 2B are views showing an installation structure of an embodiment of the present invention, in which FIG. 2A is a plan view and FIG. 2B is a side view thereof.

FIG. 3 is a plan view showing an installation structure of another embodiment of the present invention.

[Explanation of symbols]

 1 ...- Hot water storage part F1 ... Opposed part (functional component placement part) 10 ...- Hot water storage tank 10a ... Overflow pipe 10b ... Drain pipe 10c ... Drain valve 2.・ ・ ・ Heating part F2 ・ ・ ・ Counter part (functional part placement part) 21 ・ ・ ・ ・ Heating tank 22 ・ ・ ・ ・ Electric heater 23 ・ ・ ・ ・ ・ ・ Pump 25 ・ ・ ・Flow sensor 28 ・ ・ ・ ・ Flow switch 24, 27 ・ ・ ・ ・ Check valve TH ・ ・ ・ ・ Temperature sensor HL ・ ・ ・ ・ High limit sensor S ・ ・ ・ ・ Maintenance space 101 ・ ・ ・ ・ Floor 101a ・ ・.... Openings 102 ... Lid

Claims (1)

[Scope of utility model registration request] 1. In a water heater having a structure in which hot water heated by a heating unit is introduced into a hot water storage unit to store a set volume of hot water in a tank of the hot water storage unit, the hot water storage unit and the heating unit are respectively provided. The electric hot water is arranged such that a part of the side faces the same maintenance space, and all the functional components of the hot water storage part and the heating part are arranged in the part facing the maintenance space. vessel.